While publisher Activision continues to tease Call of Duty: Black Ops Cold War content, the company has revealed a new skin for Warzone cargo trucks that players can acquire for free.

The Iron Curtain Cargo Truck skin is available for all Warzone players to unlock via the Pawn Takes Pawn site, which is part of the Call of Duty ARG that has been drip-feeding Black Ops Cold War content for a while now. By heading to the site's Invisible Truths page (and signing up for or creating a free account), players will then be prompted to input six different keycodes into the pop-up box. After entering the keycodes below, you'll unlock an achievement and the redemption code for the Iron Curtain Cargo Truck.

Spawn Takes Spawn Invisible Truths Keycodes

• FUGAZIFILE
• BURNBAG
• INTELFIRE
• INFOHAX
• SHREDITALL
• GRIDSQUARE

YouTuber PrestigeIsKey performed the entire process and provided the above keycodes to make acquiring the Iron Curtain Cargo Truck easier. The full unlocking process is summarized below: